ec_asn1_test: add secp256k1.m

1 files changed, 81 insertions, 10 deletions

diff --git a/regress/lib/libcrypto/ec/ec_asn1_test.c b/regress/lib/libcrypto/ec/ec_asn1_test.c
index 060d8e581ff..e5e899264dd 100644
--- a/regress/lib/libcrypto/ec/ec_asn1_test.c
+++ b/regress/lib/libcrypto/ec/ec_asn1_test.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: ec_asn1_test.c,v 1.9 2024/10/18 10:12:25 tb Exp $ */
+/* $OpenBSD: ec_asn1_test.c,v 1.10 2024/10/18 10:40:31 tb Exp $ */
 /*
  * Copyright (c) 2017, 2021 Joel Sing <jsing@openbsd.org>
  * Copyright (c) 2024 Theo Buehler <tb@openbsd.org>
@@ -24,12 +24,12 @@
 #include <openssl/err.h>
 #include <openssl/objects.h>
 
-const uint8_t ec_secp256r1_pkparameters_named_curve[] = {
+static const uint8_t ec_secp256r1_pkparameters_named_curve[] = {
 	0x06, 0x08, 0x2a, 0x86, 0x48, 0xce, 0x3d, 0x03,
 	0x01, 0x07,
 };
 
-const uint8_t ec_secp256r1_pkparameters_parameters[] = {
+static const uint8_t ec_secp256r1_pkparameters_parameters[] = {
 	0x30, 0x81, 0xf7, 0x02, 0x01, 0x01, 0x30, 0x2c,
 	0x06, 0x07, 0x2a, 0x86, 0x48, 0xce, 0x3d, 0x01,
 	0x01, 0x02, 0x21, 0x00, 0xff, 0xff, 0xff, 0xff,
@@ -64,7 +64,7 @@ const uint8_t ec_secp256r1_pkparameters_parameters[] = {
 	0x01, 0x01,
 };
 
-const uint8_t ec_secp256k1_pkparameters_parameters[] = {
+static const uint8_t ec_secp256k1_pkparameters_parameters[] = {
 	0x30, 0x81, 0xe0, 0x02, 0x01, 0x01, 0x30, 0x2c,
 	0x06, 0x07, 0x2a, 0x86, 0x48, 0xce, 0x3d, 0x01,
 	0x01, 0x02, 0x21, 0x00, 0xff, 0xff, 0xff, 0xff,
@@ -352,6 +352,7 @@ struct curve {
 	const char *cofactor;
 	const char *x;
 	const char *y;
+	int known_named_curve;
 	const char *named;
 	size_t named_len;
 	const char *param;
@@ -362,11 +363,11 @@ struct curve {
  * From draft-ietf-lwig-curve-representation-23, Appendix E.3
  */
 
-const uint8_t ec_wei25519_pkparameters_named_curve[] = {
+static const uint8_t ec_wei25519_pkparameters_named_curve[] = {
 	0x06, 0x03, 0x2b, 0x65, 0x6c,
 };
 
-const uint8_t ec_wei25519_pkparameters_parameters[] = {
+static const uint8_t ec_wei25519_pkparameters_parameters[] = {
 	0x30, 0x81, 0xde, 0x02, 0x01, 0x01, 0x30, 0x2b,
 	0x06, 0x07, 0x2a, 0x86, 0x48, 0xce, 0x3d, 0x01,
 	0x01, 0x02, 0x20, 0x7f, 0xff, 0xff, 0xff, 0xff,
@@ -425,7 +426,7 @@ static const struct curve wei25519 = {
  * From draft-ietf-lwig-curve-representation-23, Appendix G.3
  */
 
-const uint8_t ec_wei25519_2_pkparameters_parameters[] = {
+static const uint8_t ec_wei25519_2_pkparameters_parameters[] = {
 	0x30, 0x81, 0xde, 0x02, 0x01, 0x01, 0x30, 0x2b,
 	0x06, 0x07, 0x2a, 0x86, 0x48, 0xce, 0x3d, 0x01,
 	0x01, 0x02, 0x20, 0x7f, 0xff, 0xff, 0xff, 0xff,
@@ -479,7 +480,7 @@ static const struct curve wei25519_2 = {
 	.param_len = sizeof(ec_wei25519_2_pkparameters_parameters),
 };
 
-const uint8_t ec_wei25519_3_pkparameters_parameters[] = {
+static const uint8_t ec_wei25519_3_pkparameters_parameters[] = {
 	0x30, 0x81, 0xde, 0x02, 0x01, 0x01, 0x30, 0x2b,
 	0x06, 0x07, 0x2a, 0x86, 0x48, 0xce, 0x3d, 0x01,
 	0x01, 0x02, 0x20, 0x7f, 0xff, 0xff, 0xff, 0xff,
@@ -539,6 +540,69 @@ static const struct curve wei25519_3 = {
 	.param_len = sizeof(ec_wei25519_3_pkparameters_parameters),
 };
 
+/*
+ * From draft-ietf-lwig-curve-representation-23, Appendix L.3
+ */
+
+static const uint8_t ec_secp256k1_m_pkparameters_named_curve[] = {
+	0x06, 0x05, 0x2b, 0x81, 0x04, 0x00, 0x0a,
+};
+
+static const uint8_t ec_secp256k1_m_pkparameters_parameters[] = {
+	0x30, 0x81, 0xe0, 0x02, 0x01, 0x01, 0x30, 0x2c,
+	0x06, 0x07, 0x2a, 0x86, 0x48, 0xce, 0x3d, 0x01,
+	0x01, 0x02, 0x21, 0x00, 0xff, 0xff, 0xff, 0xff,
+	0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+	0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+	0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xfe,
+	0xff, 0xff, 0xfc, 0x2f, 0x30, 0x44, 0x04, 0x20,
+	0xcf, 0xcd, 0x5c, 0x21, 0x75, 0xe2, 0xef, 0x7d,
+	0xcc, 0xdc, 0xe7, 0x37, 0x77, 0x0b, 0x73, 0x81,
+	0x5a, 0x2f, 0x13, 0xc5, 0x09, 0x03, 0x5c, 0xa2,
+	0x54, 0xa1, 0x4a, 0xc9, 0xf0, 0x89, 0x74, 0xaf,
+	0x04, 0x20, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+	0x06, 0xeb, 0x04, 0x41, 0x04, 0x3a, 0xca, 0x53,
+	0x00, 0x95, 0x9f, 0xa1, 0xd0, 0xba, 0xf7, 0x8d,
+	0xcf, 0xf7, 0x7a, 0x61, 0x6f, 0x39, 0x5e, 0x58,
+	0x6d, 0x67, 0xac, 0xed, 0x0a, 0x88, 0x79, 0x81,
+	0x29, 0x0c, 0x27, 0x91, 0x45, 0x95, 0x80, 0xfc,
+	0xe5, 0x3a, 0x17, 0x0f, 0x4f, 0xb7, 0x44, 0x57,
+	0x9f, 0xf3, 0xd6, 0x20, 0x86, 0x12, 0xcd, 0x6a,
+	0x23, 0x3e, 0x2d, 0xe2, 0x37, 0xf9, 0x76, 0xc6,
+	0xa7, 0x86, 0x11, 0xc8, 0x00, 0x02, 0x21, 0x00,
+	0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+	0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xfe,
+	0xba, 0xae, 0xdc, 0xe6, 0xaf, 0x48, 0xa0, 0x3b,
+	0xbf, 0xd2, 0x5e, 0x8c, 0xd0, 0x36, 0x41, 0x41,
+	0x02, 0x01, 0x01,
+};
+
+static const struct curve secp256k1_m = {
+	.descr = "short Weierstrass secp256k1.m",
+	.oid =	 "1.3.132.0.10",
+	.sn =	 SN_secp256k1,
+	.p =	 "ffffffff" "ffffffff" "ffffffff" "ffffffff"
+		 "ffffffff" "ffffffff" "fffffffe" "fffffc2f",
+	.a =	 "cfcd5c21" "75e2ef7d" "ccdce737" "770b7381"
+		 "5a2f13c5" "09035ca2" "54a14ac9" "f08974af",
+	.b =	 "06eb",
+	.x =	 "3aca5300" "959fa1d0" "baf78dcf" "f77a616f"
+		 "395e586d" "67aced0a" "88798129" "0c279145",
+	.y =	 "9580fce5" "3a170f4f" "b744579f" "f3d62086"
+		 "12cd6a23" "3e2de237" "f976c6a7" "8611c800",
+	.order = "ffffffff" "ffffffff" "ffffffff" "fffffffe"
+		 "baaedce6" "af48a03b" "bfd25e8c" "d0364141",
+	.cofactor = "1",
+	.known_named_curve = 1,
+	.named = ec_secp256k1_m_pkparameters_named_curve,
+	.named_len = sizeof(ec_secp256k1_m_pkparameters_named_curve),
+	.param = ec_secp256k1_m_pkparameters_parameters,
+	.param_len = sizeof(ec_secp256k1_m_pkparameters_parameters),
+};
+
 static EC_GROUP *
 ec_group_from_curve_method(const struct curve *curve, const EC_METHOD *method,
     BN_CTX *ctx)
@@ -752,14 +816,18 @@ ec_group_non_builtin_curve(const struct curve *curve, const EC_METHOD *method,
 
 	pder = curve->named;
 	der_len = curve->named_len;
-	if ((new_group = d2i_ECPKParameters(NULL, &pder, der_len)) != NULL) {
+	new_group = d2i_ECPKParameters(NULL, &pder, der_len);
+	if (!curve->known_named_curve && new_group != NULL) {
 		fprintf(stderr, "FAIL: managed to decode unknown named curve %s\n",
 		    curve->descr);
 		goto err;
 	}
+	EC_GROUP_free(new_group);
+	new_group = NULL;
 
 	error = ERR_get_error();
-	if (ERR_GET_REASON(error) != EC_R_UNKNOWN_GROUP) {
+	if (!curve->known_named_curve &&
+	    ERR_GET_REASON(error) != EC_R_UNKNOWN_GROUP) {
 		fprintf(stderr, "FAIL: %s unexpected error: want %d, got %d\n",
 		    curve->descr, EC_R_UNKNOWN_GROUP, ERR_GET_REASON(error));
 		goto err;
@@ -825,6 +893,9 @@ ec_group_non_builtin_curves(void)
 	failed |= ec_group_non_builtin_curve(&wei25519_3, EC_GFp_mont_method(), ctx);
 	failed |= ec_group_non_builtin_curve(&wei25519_3, EC_GFp_simple_method(), ctx);
 
+	failed |= ec_group_non_builtin_curve(&secp256k1_m, EC_GFp_mont_method(), ctx);
+	failed |= ec_group_non_builtin_curve(&secp256k1_m, EC_GFp_simple_method(), ctx);
+
 	BN_CTX_free(ctx);
 
 	return failed;